C70 COSC - Wristwatch Christopher Ward - Free user manual and instructions

Brand	Christopher Ward
Model	C70 COSC
Product Type	Automatic Chronograph Watch
Movement	Swiss automatic chronograph (COSC certified)
Case Diameter	42 mm
Case Material	Stainless steel
Water Resistance	50 meters (5 ATM)
Crystal	Double-curved sapphire crystal with anti-reflective coating
Strap	Italian leather strap with quick-release pins
Functions	Chronograph (60-second, 30-minute, 12-hour), date display, small seconds
Power Reserve	Approximately 48 hours
Weight	Approximately 95 grams (excluding strap)
Lume	Super-LumiNova on hands and hour markers
Crown	Screw-down crown with twin flags motif
Chronograph Pushers	Pump-style pushers with screw-down mechanism
Case Back	Exhibition case back with mineral glass
Clasp	Pin buckle with engraved Christopher Ward logo

Frequently Asked Questions - C70 COSC Christopher Ward

What is the accuracy of the C70 COSC?

The C70 COSC is chronometer-certified, meaning it has passed rigorous tests by COSC. Typical accuracy is within -4 to +6 seconds per day.

How do I wind the watch manually?

Unscrew the crown to position 1 (pull out slightly). Turn the crown clockwise about 30-40 times. The watch will start running and the seconds hand will begin. Then screw the crown back down to ensure water resistance.

Is the watch suitable for swimming?

The C70 COSC has a water resistance rating of 50 meters (5 ATM), which means it is suitable for light splashes and rain but not swimming or diving. Do not operate the crown or pushers underwater.

How do I set the date?

Pull the crown to position 2 (fully out). Turn clockwise to set the date. Avoid setting the date between 9 PM and 3 AM to prevent damaging the movement. Push the crown back in and screw down.

How do I use the chronograph?

Press the top pusher to start/stop the chronograph. Press the bottom pusher to reset the chronograph to zero. The subdials track 60 seconds, 30 minutes, and 12 hours.

What type of battery does the watch use?

The C70 COSC is an automatic watch and does not use a battery. It is powered by the movement of your wrist. If not worn for a while, wind it manually to restart.

How often should I service the watch?

Christopher Ward recommends servicing the movement every 3-5 years to maintain accuracy and longevity. Service should be performed by a qualified watchmaker.

Is the strap interchangeable?

Yes, the C70 COSC features quick-release spring bars. You can easily swap the strap by pulling the quick-release lever near the lugs. The strap width is 20 mm.

How do I adjust the bracelet length?

If you have the bracelet version, use a small screwdriver to remove screws from the links. Remove an equal number of links from both sides for optimal fit. You may need a watchmaker for precise adjustment.

Is the watch magnetic?

The C70 COSC uses an automatic movement that is not specifically anti-magnetic. Avoid exposure to strong magnetic fields (e.g., speakers, MRI machines) as they can affect accuracy.

USER MANUAL C70 COSC Christopher Ward

The C70 COSC Racing Series

OWNER'S HANDBOOK

Time on your side...

Your Christopher Ward watch has been designed and engineered by highly talented craftspeople to ensure not only accurate and precise timekeeping but also to bring a real pride of ownership that only luxury items of the highest quality can ever hope to deliver.

You have made an investment, a good one, and the aim of this handbook is to help you make the most of that investment during what I hope will be a lifetime of ownership.

Christopher Ward

C70 DBR1 COSC

Caring for your Christopher Ward quartz watch

Your C70 COSC Racing Series Chronometer is constructed from the finest components and materials available including one of Switzerland's finest quartz movements.

As with all watches of this quality, with just a little care, it has the potential to become an heirloom piece giving further joy to future generations.

Here are a few hints to help keep your watch working perfectly over the years:

• Although the battery in your watch may last longer, we recommend you have it changed every 2/3 years by a reputable watch repairer.
• At the same time as having the battery changed it makes sense to have the watch repairer clean and lubricate your watch as necessary.
• Make sure the crown is screwed down fully before putting the watch into water. Adhere to the water resistance ratings towards the end of the handbook to prevent water getting to the movement which could result in a very costly repair or the need for a replacement movement.
• Your watch is shock resistant to minor impacts but dropping from height onto a hard surface may damage the movement.

Should you need a replacement part - don't worry, we keep stocks of spare parts for years, even for discontinued models. It's all part of the Christopher Ward service.

Finally, don't forget our CW360° Care Programme allows you to return your watch absolutely free, for any reason, and with no quibbles, for up to 60 days after purchase and we also guarantee your movement for up to 60 months, so long as it is regularly serviced. After all, why shouldn't you enjoy peace of mind as much as you enjoy your watch?

COSC Certification

COSC (Contrôle Officiel Suisse des Chronomètres) is the Official Swiss Chronometer Testing Institute responsible for certifying both the accuracy and precision of wristwatches in Switzerland.

Only movements which meet the precision criteria are granted an official certificate. Each uncased movement is individually tested for 15 days, in 5 positions, at 3 different temperatures. The movements are fitted with a seconds hand for tests and measurements are made daily with the aid of cameras. Based on all these measurements, 7 eliminatory criteria are calculated, each of which must be met.

The C70 COSC Racing Series

Features

27 jewel Swiss quartz movement

Multi-function chronograph

Date window

Convex sapphire crystal with ant-reflective coating

Water resistant to 10 atm

Adjustable quick-release butterfly clasp

Screw-in crown

Chronographic dials with split

minutes / seconds / 1/10 seconds

Tachymeter bezel and engraved backplate

Technical Data

Diameter: 42mm

Height: 10.7mm

Weight: 90g

Case: 316L Stainless steel

Calibre: ETA 251.232 COSC

Type: Chronometer

Description of the display and control buttons

Display elements

Control buttons

Minute Hand

Tenths

60 Minute Counter

Hour hand

Hours

60 Second Counter

Seconds

Date Window

Push-button A

Crown

Push-button B

Setting the time

For a superior water resistance your crown is of the screw-in type. To get to position 1 turn the crown anti-clockwise until it releases itself.

- Pull out the crown to position ③(the watch stops).

- Turn the crown until you reach the correct time e.g. 08.45 hr.

- Push the crown back into position 1 and screw the crown in a clockwise direction in order to maintain water resistance. The crown should sit flush to the case.

Setting the date (quick mode)

• Pull out the crown to position 2(the watch continues to run).
• Turn the crown clockwise until the correct date appears. The hour hand moves in one hour increments.
• Pull the crown to position 3

Push the crown back into position 1 until flush with the case and screw in.

Please note:

The date can not be changed during the date changing phase between 21.00 hr and 02.00 hr as the watch gearing will already be aligning itself to change the date.

The crown should always be screwed in after adjustment, and it is best to do so from position 3 to avoid advancing beyond the desired date.

Setting the date/time

Example:

Date / time on the watch: 17th / 01.25 hr Present date / time: 4th / 20.30 hr

- Pull out the crown to position ② (the watch continues to run).

- Turn the crown clockwise until yesterday's date appears ie. 3rd.

- Pull out the crown to position 3(the watch stops).

- Turn the crown clockwise until the correct date ie. 4th appears (after passing through midnight).

- Continue to turn the crown until the correct time 21.30 hr appears.

- Push the crown back into position 1 until flush with the case and screw in.

Chronograph:

• The hour counter measures 12 hours per rotation.
• The minute counter measures 60 minutes per rotation.
• The centre stop-second measures 60 seconds per rotation.
• The 1/10 second counter measures 1 second per rotation.

Display elements

Tenths

60 Minute Counter

Hours

60 Second Counter

Seconds

Control buttons

Push-button A (Start / Stop)

Push-button B (Reset)

Please note:

Before using the chronograph functions, please ensure that:

• The crown is in position 1(screwed in).

• The 4 chronograph hands are at zero position. Should this not be the case, the positions of the hands must be adjusted (see the chapter entitled ‘Adjusting the chronograph hands to zero position’).

Chronograph: Basic function

(Start / Stop / Reset)

Example:

Start: Press push-button A.

② Stop: to stop the timing, press push-button A once more and read the 4 chronograph counters:

3Zero positioning:

Press push-button B.

(The 3 chronograph hands will be reset to their zero positions).

Example of use:

Timing a runner over 100m.

Push-button B

Chronograph: Accumulated timing

Example:

Start: (start timing).

2Stop: (e.g. 15 min 5 sec following ). 1

3Restart: (timing is resumed).

4Stop: (e.g. 13 min 5 sec following ) 3

$$ = 2 8 \min 1 0 \sec $$

(the accumulated measured time is shown)

5Reset:

The 4 chronograph hands are returned to their zero positions.

6 Repeat: as necessary.

Example of use:

Overall time to complete a journey less the coffee breaks.

Chronograph:

Intermediate or interval timing

Example:

Start: (start timing).

②Display interval:

e.g. 10 minutes 10 seconds (timing continues in the background).

3 Making up the measured time:

(the 4 chronograph hands are quickly advanced to the ongoing measured time).

4 * Stop: (final time is displayed).

5Reset:

The 3 chronograph hands are returned to their zero positions.

Please note:

* Following ③, further intervals or intermediates can be displayed by pressing push-button B.

Example of use: 4 x 100m relay.

Adjusting the chronograph hands to zero position

Example:

One or several chronograph hands are not in their correct zero positions and have to be adjusted (e.g. following a battery change).

- Pull out the crown to position 2 press Button B to reset the 30 minute counter to zero

- Pull out the crown to position ③. Push Button A to adjust the stop second hand and Button B to adjust the tenths seconds hand.

Fitting the bracelet

If you find the bracelet needs adjusting to your wrist we recommend you have it re-sized by a reputable watch repairer or jeweller. Most local jewellers will either do this for free or perhaps make a nominal charge for what is a job that should only take a few minutes. It is always best to be present so a comfortable fit is achieved.

Establishing the length of the bracelet

Place the watch with its separated bracelet on your wrist and estimate the number of links you need to remove. If you need to remove several links, try to keep the numbers removed from both halves of the bracelet as equal as possible to ensure that the clasp remains roughly in the middle of your wrist.

To open your bracelet simply press either side of the clasp to release as shown.

The quick-release butterfly clasp

The strap versions of the C70 COSC Racing Series use quick-release butterfly clasps. If you are unfamiliar with the butterfly clasp system just follow our 8 step guide below.

Close-up of a black and silver buckle buckle (no text or symbols visible)

Step 1 Locate the clasp

Close-up of a finger holding a small electronic component (no visible text or symbols)

Step 2 Click quick-release

Close-up of a metallic mechanical component with curved and stepped surfaces (no visible text or symbols)

Step 3 Pull open clasp

Close-up of a hand holding a small metallic clip (no visible text or symbols)

Step 4 Prise cover open

Close-up of a mechanical clamp or bracket with metallic components and a small circular feature (no visible text or symbols)

Step 5 Thread strap through

Close-up of a white mechanical device with a metallic bracket and circular components (no visible text or symbols)

Step 6 Snap back

Close-up of a hand holding a small electronic device with visible components (no text or symbols)

Step 7 Close clasp

Close-up of a black wrist strap with silver metal clip (no text or symbols visible)

Step 8 Complete

Water resistance

Please note. these are only guidelines but we strongly urge you to adhere to them to retain the integrity of your watch. If you have any queries regarding this please contact us direct.

1 ATM (10 Metres)

3 ATM (30 Metres)

5 ATM (50 Metres)

10 ATM (100 Metres)

30 ATM (300 Metres)

50 ATM (500 Metres)

Safe to wear your watch while washing your hands with tap water.

Washing your car and or general hosepipe usage.

Water resistant to most household shower units.

Safe to use while snorkelling in open water, it is not advisable to dive with your watch.

Ideal for experienced divers and, in general, anybody practising scuba-diving.

Professional divers, experienced prolonged exposure underwater.

NB. To safeguard watch movement please ensure the crown is, at all times, secured correctly.

Keeping in touch with Christopher Ward...

From small beginnings just a few short years ago (our first workshop was actually a refurbished chicken shed!), Christopher Ward has won a worldwide following for his eponymous watch brand and can justifiably claim to manufacture the most affordable luxury watches in the world.

For many, the philosophy behind the brand, trying to put luxury watches within the reach of everyone, is as attractive as the watches themselves as is the very open approach of the business which means that Chris and the team spend a lot of time communicating personally with our customers - many of whom have become friends.

As the owner of a Christopher Ward watch, if ever you need to get hold of us we are at your service. We have listed some useful contact details on the back cover.

There is also always something new going on at our website at www.christopherward.co.uk and, if you haven't already discovered the independent forum dedicated to our brand at www.christopherwardforum.com we would recommend a visit. Informative and fun, it's a great place to hear the unexpurgated view of Christopher Ward of London!